AT+PING Command

[Veeda]

Hello,

How is AT+PING=<ip> implemented? I could not find the implementation on github.

Also, is the time reported by ping in microseconds? I would assume so.

Thank you

[Veeda]

Anyone know what units the time reported by ping is?

[ESP_Faye]

Hi,

We will update our documentation.

The unit of ping time is "ms".

Thanks for your interest in ESP8266 !

[tilz0R]

AT+PING command should return +PING=70 instead of +70, because this +70 is not "unique" string like "+PING" would be at start and that makes hard code response without polling mode.

If you do it in code like this:

1. send AT+PING..
2. Wait + sign and grab ms value
3. return from function according to "OK" or "ERROR"

then this can block your execution on target MCU because this can take time.

If you do like that:

1. send AT+PING..
2. Return from function
3. Do other job and periodically check response
4. If received string starts with "+PING", parse number and call user event function.

Hope you understand that.